Question

Los op vir :/ Solve for y: 3.4.1 3y+7= 4y 3.4.2 10-3y+4=8+4v-y 3.4.3 2(y+1)=10-2/3v-4)​

Answer 1

Step-by-step explanation: First equation: 3.4.1 3y + 7 = 4y

Subtract 3y from both sides: 3.4.1 (3y - 3y) + 7 - 3y = 4y - 3y

Simplify: 3.4.1 7 = 4y

Divide both sides by 3.4.1: 7 / 3.4.1 = 4 / 3.4.1 * y

Multiply both sides by y: 7y = 4 * 3.4.1y

Substitute 7y with LHS: 4 * 3.4.1y = 7 * Second equation: 3.4.2 10 - 3y + 4 = 8 + 4v - y

Add 3y to both sides: 3.4.2 (10 - 3y + 4) + 3y = 8 + 4v - y + 3y

Simplify: 3.4.2 17 = 12 + 4v

Subtract 12 from both sides: 3.4.2 (17 - 12) + 12 = 4v

Divide both sides by 3.4.2: 4.2 * 5 = 4v

Multiply both sides by v: 4.2v = 4 *