Asked by Carl

Solve by addition or substitution;

10x + 2y = 7
y= -5 + 3

Answers

Answered by Emily
Substitute y in the first equation with the second equation.

10x + 2(-5+ 3) = 7
10x + -10 + 6 = 7
10x - 4 = 7
10x = 11
x = (11/10), or 1.1

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