Question

8x+3y= 70; y=2 Solve for x.

Answer 1

8

Explanation:

x is 8

Answer 2

Explanation

• Given the equation.

`8x + 3y = 70`

with given condition where y = 2.

Therefore, substitute the value of y in the equation.

`8x + 3(2) = 70 \\ 8x + 6 = 70`

• Solve the equation for x-term.

`8x = 70 - 6 \\ 8x = 64 \\ x = (64)/(8) \longrightarrow (8)/(1) \\ x = 8`

• Answer Check by substituting the value of y and x in the equation.

`8x + 3y = 70 \\ 8(8) + 3(2) = 70 \\ 64 + 6 = 70 \\ 70 = 70`

Hence, the equation is true for x = 8 and y = 2.

Answer

`\large{x = 8}`