Use the substitution method to solve: a + s = 304

7a + 2s = 1118

Equation 1 is in the correct format.

Equation 2 is in the correct format.

Rearrange Equation 2 to solve for a: 7a + 2s = 1118

Subtract 2s from both sides to isolate a: 7a + 2s - 2s = 1118 - 2s

7a = 1118 - 2s

Now divide by 7: Revised Equation 2: Plug Revised Equation 2 value into a: 1(a) + s = 304

1 * ((1118 - 2s)/7) + s = 304

((1118 - 2s)/7) + s = 304

Multiply equation 1 through by 7 7 * (((1118 - 2s)/7) + s = 304)

7 * (((1118 - 2s)/7) + s = 304)

1118 - 2s + 7s = 2128

Group like terms: -2s + 7s = 2128 - 1118

5s = 1010

Divide each side by 5 s =

202 Plug this answer into Equation 1 1a + 1(202) = 304

1a + 202 = 304

1a = 304 - 202

1a = 102

Divide each side by 1 a = 102

See Answer a = 102 and s = 202

Solve using Gauss Jordan Elimination

How does the Simultaneous Equations Calculator work?
Free Simultaneous Equations Calculator - Solves a system of simultaneous equations with 2 unknowns using the following 3 methods: 1) Substitution Method (Direct Substitution) 2) Elimination Method 3) Cramers Method or Cramers Rule
Pick any 3 of the methods to solve the systems of equations
2 equations 2 unknowns This calculator has 2 inputs.

What 1 formula is used for the Simultaneous Equations Calculator?
What 7 concepts are covered in the Simultaneous Equations Calculator?
cramers rule an explicit formula for the solution of a system of linear equations with as many equations as unknowns eliminate to remove, to get rid of or put an end to equation a statement declaring two mathematical expressions are equal simultaneous equations two or more algebraic equations that share variables substitute to put in the place of another. To replace one value with another unknown a number or value we do not know variable Alphabetic character representing a number Simultaneous Equations Calculator Video VIDEO

Tags: Add This Calculator To Your Website